Xamarin.forms: [Bug] CollectionView ItemsUpdatingScrollMode=KeepLastItemInView not working on iOS

[StevenGranados]

Description

ItemsUpdatingScrollMode=KeepLastItemInView seems to not work on iOS but works fine on android.

Steps to Reproduce

1. Open repro
2. Run on iOS 13 simulator
3. Click add until items reach bottom of page
4. Observe that new items aren't scrolled to automatically.

Expected Behavior

Items scrolled to if added on end.

Actual Behavior

Items are added but collectionview isn't scrolled automatically.

Basic Information

• Version with issue: 4.3.0.851321-pre3
• Last known good version: Doesn't work in 4.2 either
• IDE:Visual studio 2019 16.3.2
• Platform Target Frameworks:
  
  
  
  • iOS: 13.0
  
  
• Android Support Library Version: 28.0.0.3
• Nuget Packages: No unusual ones
• Affected Devices:iPhone 8

Reproduction Link

CarouselViewTest.zip

[PureWeen]

Behavior isn't iOS 13 specific

[modplug]

Any updates to this? Still experiencing this on iOS

[stefanbogaard86]

Currently using a workaround with the ScrollTo method to scroll to the end of the CollectionView, but this has it's own problems (doesn't work well with items of different sizes). Anyone got a working workaround?

[Tommigun1980]

Please reopen. This doesn't work on iOS.

XF5 pre-3.

[MSicc]

it does also not work on XF 4.8.0.1560, and I am still suffering all the referenced issues as well.